public void Finish()
{
ResultVisible = true;
var result = new TestResult
{
CorrectAnswers = Items.Count(x => x.Answers.Any(y => y.IsCorrect == true && y.IsSelected == true)),
Total = Items.Count()
};
CorrectAnswers = Items.Count(x => x.Answers.Any(y => y.IsCorrect == true && y.IsSelected == true));
ResultVisible = true;
Consumo.Add(result);
}